diff --git a/LINES b/LINES
index dc38aefecb6852976201f4162efbd25b07f5592e..788c5b7a21af424b7dda1ba2f7784a71d25727d4 100644
--- a/LINES
+++ b/LINES
@@ -14,5 +14,5 @@
 
 2021-2-23 0.484: 484 lines, 5 files, rain
 
-2021-2-23 0.490: 490 lines, 6 files, rain
+2021-2-23 0.509: 509 lines, 6 files, rain
 
diff --git a/Makefile b/Makefile
index 6d0b1e2c8db6b0bf17d6dded88b9978f0c25d56c..388a8b107430ec87c8cc02e154ee303bde6f953e 100644
--- a/Makefile
+++ b/Makefile
@@ -6,3 +6,7 @@ all:
 clear:
 	rm boot/x86/*.bin kernel/*.bin cunix.img
 
+
+lines:
+	wc boot/x86/boot.asm boot/x86/loader.asm kernel/kernel.asm include/arch/x86/* -l
+
diff --git a/README.md b/README.md
index ffb29b9230525db06e6f0432f39f4ea34c67465f..64e9d4d8e7d4d284e169dbd483983ba6048f2a81 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Cunix kernel
 &#9let `readdisk.inc` smaller, but we just can use CHS or LBA, not both. 
 
 
-`0.490s-kernel`: 
+`0.509s-kernel`: 
 &#9load kernel to 0x8200-0x9200 for 4KB, kernel.asm display 'K' to screen. 
 
 </pre>
diff --git a/kernel/kernel.asm b/kernel/kernel.asm
index 39c2dfe4c5c054361727bb5ee71a6918f3c17cb0..d15e678b0811fbe4e4c446254f3329af896b875b 100644
--- a/kernel/kernel.asm
+++ b/kernel/kernel.asm
@@ -1,7 +1,26 @@
+; Copyright (C) 2021 Rain
+
+; This file is part of Cunix. 
+; Cunix is free software: you can redistribute it and/or modify 
+; it under the terms of the GNU General Public License as published by 
+; the Free Software Foundation, either version 3 of the License, or 
+; (at your option) and later version. 
+
+; Cunix is distributed in the hope that it will be useful, 
+; but WITHOUT ANY WARRANTY; without even the implied warranty of 
+; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
+; GNU General Public License for more details. 
+
+; You should have received a copy of the GNU General Public License 
+; along with Cunix. If not, see <https://www.gnu.org/licenses/>.  
+
+
+
+
 bits 64
 
 _start:
 	mov byte [0xb8000], 'K'
-
 	hlt
 	jmp $
+